30200 series

30200 Series Metric Tapered Roller Bearings Full Sizes & Global Factory Standard Suffix Guide

30200 single row separable tapered roller bearings are the most popular metric axle bearing for global B2B machinery distributors, auto axle manufacturers, tractor & heavy equipment repair workshops. The series covers universal base models, HR Japan equivalent series, J2/Q reinforced cage variants, K tapered bore, W33 continuous lubrication groove, /A wide heavy taper, NR outer snap ring groove, C3 heavy-duty clearance and matched X paired bearing sets. All specifications match ISO standard dimensions, fully interchangeable with NSK HR series, SKF J2/Q series, NTN standard taper roller bearings. Below classified tables list hot-selling complete part numbers, dimension data, industry alias names, working application scenarios and Spanish search keywords for Latin American bulk buyers.

(Español: Rodamientos cónicos serie 30200 y equivalente HR30200 con variantes J2/Q, agujero cónico K, ranura W33 y ángulo ancho /A, intercambiables con NSK, SKF y NTN para ejes automotrices y maquinaria agrícola.)

Two Core Taper Angle Design & Global Interchange Series Overview

1. Standard Taper (No suffix, 12°-14° contact angle): General light truck, passenger car, small gearbox daily replacement, base model 302XX; Japanese equivalent code HR302XX.
2. Wide Heavy Taper (/A suffix, 18° enlarged contact angle): High unilateral axial load for heavy truck axles, semi-trailers, large farm tractors, model 302XX/A / HR302XXA.
J2 / Q suffix = Reinforced pressed steel cage, higher impact resistance for rough muddy construction & mining machinery.

Universal Heavy Load Application Scope

Suitable for passenger vehicle wheel hubs, light & heavy truck trailer axles, agricultural tractors/harvesters, mini excavators, industrial speed reducers, belt conveyors, mining machinery and all transmission assemblies bearing combined radial + single-direction axial load.

30202-30240 Base Model Full Dimension Reference (d/D/T mm)

HR302XX Japan Equivalent Series Suffix Table (NSK Standard Code)

J2 / Q Reinforced Steel Cage Suffix Hot Selling Models

K Tapered Inner Bore & W33 Circumferential Lubrication Groove Combined Models

/A Wide 18° Heavy Taper Angle Axle Bearing Series

N / NR Outer Ring Snap Ring Groove Series (With Circlip)

C2 / CN / C3 / C4 Internal Clearance Hot Selling Combinations

Frequently Asked Questions About 30200 & HR30200 Taper Roller Bearing Suffixes

1.What does HR stand for on HR30207J bearing?

HR series is NSK Japan equivalent metric tapered roller bearing code, HR302XX shares fully identical mounting dimensions with standard 302XX series, interchangeable for aftermarket auto and farm machinery repair. Suffix J means standard stamped steel cage for HR series base models.

(Español: La serie HR es el equivalente NSK japonés de la serie 30200, dimensiones totalmente intercambiables.)

2.Difference between J2 and Q suffix on 30208 J2/Q?

J2 = single reinforced pressed steel cage for medium shock load construction machinery; Q extra strengthening double stamping cage, anti-vibration and impact resistant for mining and heavy agricultural equipment with frequent bump load.

(Español: J2 y Q son jaulas de acero reforzado para maquinaria con impactos y vibraciones constantes.)

3.What is the function of K and W33 suffix on 30207 K W33?

K represents 1:12 tapered inner bore for installation on taper mounting shafts without lock nuts; W33 is full circumferential lubrication oil groove with three grease injection holes, designed for non-stop continuous running equipment to replenish grease without disassembly.

(Español: K = agujero interior cónico 1:12, W33 = ranura exterior para recarga constante de grasa.)

4.When to choose /A wide taper 302XX/A variant?

Select /A 18° wide taper if your equipment bears large unilateral axial thrust, such as heavy truck axles, semi-trailer main shafts and large farm tractor drive hubs; standard unmarked 13° taper only fits light load small gearboxes and passenger car hubs.

(Español: El sufijo /A amplía el ángulo de cono para soportar gran carga axial en ejes pesados.)

5.What is NR suffix outer ring snap ring bearing used for?

NR means outer ring snap ring groove plus matching circlip included, equipment designers can cancel bearing housing stop shoulder to reduce processing cost, widely applied to compact conveyor and small gearbox assemblies without integrated positioning shoulder.

(Español: NR incluye ranura y anillo elástico para simplificar el diseño de la caja de rodamientos.)